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46521 (1979 MM7)
Classification: Main-belt Asteroid          SPK-ID: 2046521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882795822778814 3.4278e-08  
a 2.201154614818273 8.2973e-09 au
q 1.786722143411257 7.5583e-08 au
i 3.464573092744276 3.708e-06 deg
node 160.9440033945768 6.5711e-05 deg
peri 101.4314525709617 6.6589e-05 deg
M 209.8968328911263 9.6149e-06 deg
tp 2459497.849409056648
(2021-Oct-10.34940906)
3.2156e-05 TDB
period 1192.818184379326
3.27
6.7446e-06
1.847e-08
d
yr
n .3018062641183856 1.7065e-09 deg/d
Q 2.615587086225288 9.8595e-09 au
  Orbit Determination Parameters
   # obs. used (total)      450  
   data-arc span      14822 days (40.58 yr)  
   first obs. used      1979-06-23  
   last obs. used      2020-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .567  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:29:38  

Additional Information
 Earth MOID = .775213 au 
 Jupiter MOID = 2.45964 au 
 T_jup = 3.639 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO432023  

46521 (1979 MM7)          Discovered 1979-Jun-25 by Helin, E. F., Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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